diff --git a/HISTORY.rst b/HISTORY.rst
index 1bf1125c..6be1b1a6 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -2,9 +2,13 @@
 
 Release History
 ===============
+0.1.63
+++++++
+* `azdev`: Update required version for `azure-cli-diff-tool`.
+
 0.1.62
 ++++++
-* `azdev extension cal-next-version`: New command to calculate valid version for next extension module release..
+* `azdev extension cal-next-version`: New command to calculate valid version for next extension module release.
 
 0.1.61
 ++++++
diff --git a/azdev/__init__.py b/azdev/__init__.py
index 1035050a..60df55cd 100644
--- a/azdev/__init__.py
+++ b/azdev/__init__.py
@@ -4,4 +4,4 @@
 # license information.
 # -----------------------------------------------------------------------------
 
-__VERSION__ = '0.1.62'
+__VERSION__ = '0.1.63'
diff --git a/setup.py b/setup.py
index 4870813e..463912b8 100644
--- a/setup.py
+++ b/setup.py
@@ -82,7 +82,7 @@
         'tox',
         'jsbeautifier~=1.14.7',
         'deepdiff~=6.3.0',
-        'azure-cli-diff-tool',
+        'azure-cli-diff-tool~=0.0.5',
         'packaging',
         'tqdm',
         'wheel==0.30.0'